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Daniel [21]
3 years ago
10

Which best describes the electromagnetic force?

Physics
2 answers:
Solnce55 [7]3 years ago
7 0
B.strong but weaker than the weak force
Lunna [17]3 years ago
7 0

C. weak, but stronger than the gravitational force

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the length of time it takes a planet to revolve around the sun is equivalent to witch of the following?
Marina86 [1]
It really depends on how far or close the planet is from the sun

6 0
3 years ago
Read 2 more answers
You want to lean your dad's ladder on a smooth wall. If the mass of ladder is 4.42 kg and coefficient
iren [92.7K]

Answer:

angle minimum   θ = 41.3º

Explanation:

For this exercise let's use Newton's second law in the condition of static equilibrium

    N - W = 0

    N = W

The rotational equilibrium condition, where we place the axis of rotation on the wall

We assume that counterclockwise rotations are positive

     fr (l sin θ) - N (l cos θ) + W (l/2 cos θ) = 0

     

the friction force formula is

     fr = μ N

     fr = μ W

we substitute

      μ m g l sin θ - m g l cos θ + mg l /2   cos θ = 0

      μ sin θ - cos θ + ½ cos θ= 0

         

       μ sin θ - ½ cos θ = 0

       sin θ / cos θ = 1/2 μ

       tan θ = 1/2 μ

       θ = tan⁻¹ (1 / 2μ)

       θ = tan⁻¹ (1 (2 0.57))

      θ = 41.3º

7 0
3 years ago
What happens to its kinetic energy when its reaches the maximum height ?​
drek231 [11]

when it reaches the maximum height, all the energy has now been converted into potential energy.when a ball is thrown straight upto into the air,all its initial kinetic energy converted into gravitational potential energy when it reaches its maximum height

7 0
3 years ago
How does a heat pump resemble a refrigeration system?
REY [17]
A heat pump is a device that is capable of transferring heat energy from a source of heat to what is known as the heat sink. It also moves thermal energy in the opposite direction of a spontaneous heat transfer through heat absorption from a cold space and releasing it to a warmer space.

When a heat pump is being utilized for heating, it employs the same principle with that of the refrigeration cycle used by an air conditioner or a refrigerator, but in the opposite direction since it releases heat into a conditioned space rather than the surrounding environment. Moreover, heat pump resembles much as refrigeration since it has the same components with the latter except for the presence of a reverse valve.
3 0
2 years ago
Someone please help me will give BRAILIEST!!!!!
nataly862011 [7]
It uses C. Kinetic Energy
3 0
2 years ago
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